Features
- The ultimate in the evolution of spark plug technology and performance from the industry leader
- The iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrode
- Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life
- New metal shell plating has enhanced anti-corrosion qualities
Specs
| Product Name | Spark Plug |
| Type | Resistor |
| Style | Iridium Racing |
| Model | R0409B-8 |
| Terminal Configuration | Threaded Stud |
| Center Electrode Projection | Non-Projected |
| Electrode Tip Material | Iridium |
| Center Electrode Type | Fine Wire |
| Ground Electrode Configuration | Single |
| Ground Electrode Shape | Taper Cut |
| Thread Reach | 19.1 mm |
| Hex Size | 16 mm |
| Heat Range | 8 |
| Spark Gap | 0.7 mm / 0.028" |
| Electrical Resistance | 5k Ohms |
| Units | Each |
| Riding Style | Off-Road |
Fitments
| Position | Notes | |||
|---|---|---|---|---|
| 2007-2019 | Honda | CRF250X | - | - |
| 2005-2009 | Honda | CRF250R | - | - |
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Fitment
Fitment
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Reviews
Reviews
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Spec Sheet
- BrandNGK
- SKU21030032
- UPC087295177914
